Perhaps you should try some spelling variations:
surfaces diffusion » surface diffusion, surfaces dimension, stresses diffusion
information fast » informatics fast, information from, information flow
array processing » dairy processing, query processing
fast surfaces » flat surfaces, test surfaces, raster surfaces
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: information fast surfaces diffusion ((array arcing) or (((array string) or (array processing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information fast surfaces diffusion ((array arcing) OR (((array string) OR (array processing)))).
• Adding a wildcard symbol may retrieve word variants: information fast surfaces diffusion ((array arcing) or (((array string) or (array processing))))*.